University of Iowa Health Care

Ophthalmology and Visual Sciences

Situs Inversus of the Retinal Vessels

Contributor: Elizabeth Gauger, MD and Eric Chin, MD

Photographers: First set: Brice Critser, CRA; Second Set: Carol Chan, CRA

Situs inversus of the retinal vessels is a rare developmental anomaly that has no visual significance. As noted in the photos below, the central retinal vessels emerge from the nasal aspect of the optic nerve (rather than temporal) and course nasally before turning temporally. Situs inversus can be seen in association with tilted disc syndrome, but is most often seen in otherwise normal, healthy eyes as an incidental finding.

Figure 1 is a fundus photo from a patient who has significant situs inversus (note, the scarring in the macula is from prior laser treatment and unrelated to the situs inversus).
Situs Inversus of the Retinal Vessels
Figure 2 is a fundus photo from a different patient who has moderate situs inversus. It is easiest to appreciate this vascular variation when it is compared to a normal fundus (Figure 3).

Figure 3. Normal Fundus (Contributed by Jesse Vislisel, MD; Photography: Toni Venckus, CRA

Normal Fundus

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Ophthalmic Atlas Images by, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

last updated: 2/14/2014
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